| dc.description.abstract | One of the problems that faced by developing countries is the sufficient
water supply. The rapid urbanization that caused by cultural activities,
economics condition and education has made the massive use of
groundwater, especially in Yogyakarta. Therefore, this study aims to
estimate the groundwater recharge on the southern slope of Merapi
Volcano using simple water balance method. This research was
conducted in southern slope of Merapi that limited by Boyong river in
the west and Kuning river in the east. The rainfall data was observed
from CHIRPS satelite and annual temperature was observed from
Yogyakarta Climatology Station (BMKG) in the last 10 years in the
study area. The result show that average annual precipitation is
2785,685 mm/year, the result of evapotranspiration real is 1633,962
mm/year, and the result of runoff is 462,245 mm/year. After the
calculation using simple water balance method, the recharge estimation
is 689,478 mm/year. These groundwater recharge values were below the
result that reported by previous studies. | en_US |
